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webbserverprogrammering/exercises/formulär/

form1.php
form2.php
form3.php
form4.php
form5.php
form6.php
form7.php
form8.php

`form7.php`

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<?php

error_reporting(-1); // Report all type of errors

ini_set('display_errors', 1); // Display all errors 

ini_set('output_buffering', 0); // Do not buffer outputs, write directly

?>

<!DOCTYPE html>

<html lang="en">

<head>

 <meta charset="utf-8">

 <meta name="viewport" content="width=device-width, initial-scale=1">

 <title>Formulär 7</title>

</head>

<body>

 <?php

 if (isset($_POST["tal1"]) && isset($_POST["tal2"]) && isset($_POST["tal3"])) {

  $tal1 = $_POST["tal1"];

  $tal2 = $_POST["tal2"];

  $tal3 = $_POST["tal3"];

  echo $tal1."<br>".$tal2."<br>".$tal3."<br>Medelvärde:".(($tal1+$tal2+$tal3)/3);

 }

 else{

 ?>

 <form method="post" action="">

  <table>

   <tr>

    <td>Skriv in tre tal:<br><input type="text" name="tal1"></td>

   </tr>

   <tr>

    <td><input type="text" name="tal2"></td>

   </tr>

   <tr>

    <td><input type="text" name="tal3"></td>

   </tr>  

  </table>



  <input type="submit" value="Beräkna">

 </form>



 <?php } ?>

</body>

</html>